Heel-breasting machine.



E. ERICKSUN.

HEEL BREASTING MACH R APPLICATION FILED MM2l 19ml/ Fatwtedan. lfS, 1914.

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HEEL BREASTNG MACHINE.

APPLIQATYON FILED my Patented Jan. 13,1914.

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HEEL BREASTING MACHINE.

APPLIGATION FILED MAY 2. 190s Patent-ed J au 13, 1914.

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E. ERGKSON.

HEEL EEEASTING MACHINE.

APPLICATION FILED MAYZ, 1908.

Patented Jan. 13; 1914.

7 SEEETS-SHEET 4.

EMCKSUN. HEEL BREASTNG MACHINE.

APPLIcAToN HLD MAY 2, 190s .Patented Jam. 1914.

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LMEQBQ,

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E. ERICKSON. HEEL BREASTING MACHINE. APPLICATION FILED MAY 2.1908

Patented Jan. 13, H914 7 SHEBTSSHELT G` Patented Jem. 13, 1914.

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l EDWARD ERIcKsoN, or BOSTON, MASSACHUSETTS, AsSreNo'E To THE :BoYLsTonMANUFACTURING COMPANY, or soUTH BOSTON, MASSACHUSETTS, A coRPoRA- TIONOF NEW JERSEY.

HEEL-BREASTING- MACHINE.

remesa.

Specica'tion of Letters Patent.

Patented Jan. 13, 1914.

Application filed May' 2, 1908. Serial No. 430,582.

tively and .accurately cutting the breast to the full depth of the heel,and for precluding the possibility of cutting beyond the heel and intothe shank, regardless of Whatever variations may exist in thethicknesses of heels and Shanks of different shoes.

The undesirability of cutting into a shank ever so slightly is too wellknown to re- .quire explanation, and so it will be sutlicient here to'point out the means for and oper tion of breasting a heel according tothe present' invention.

Reference may be had to my (1o-pending application tiled July 5, 1907,Serial No. 382,171, for the general character of a machine to which thepresent invention is applicable. This invention embodies, however,various improvedy mechanisms for accomplishing more etl'ectively thesame purpose as that to whichy the aforesaid application relates.

One of said' improvements is a movable stop for positioning the work,and, as va result of making the stop movable, the effect is a decreasein the degree ofmovement necessary for advancing the work to the stop.

Another improvement is an increase of the .radius of t-hewOrk-supporting column which is adapted to oscillate to and from*4work-receiving position with a corresponding decrease of inclination.

Other improvements are described in the body of the specification,illustrated onthc drawings and set forth in the claims.

0n the drawings, forming a part of this specilicatiom-Figure 1 is afront. elevation of a machine constructed in accordance with .thisinvention. Fig. 2 is a side'elevation thereof. Fig. 3 is a frontelevation in which the machine in an operative state. Fig. el is asimilar view showing the inoperative state. Fig. 5 is a vertical sectiononY line 5-5 of Figi 3. Figs. 6 and 7 are vertical cross sections online6 6 of Fig. 2, showing diiferent states of the means for controlling thedriving mechanism. F ig. 8 is a. perspective view of said controllingmeans.. Fig. 9 is a section online 9-9 of Fig. 2.' Fig. 10 is anelevation of the brake. Fig. 11 is a section on line 11911 of Fig. 2.Fig.' 12 is a section on line 12-12 of Fig. 2. Fig. 13 is a f1af,r1nentary section on line 13--13of Fig. 2. Fig. 111 a fragmentarysection on line 14C-14 of Fig. 13. Fig. 15 is a section on the line 1515 of Fig. ,14. Fig. 1G is a fragmentary section on the line 16--16 ofFig. 141.

The same reference characters indicate the same parts wherever theyoccur.

The machine is mounted on a base 10. An' lupright, standard. or frame 11is mounted on the base and supports arreciprocatory head 12 movable 1nAguides 13 and carrying .i cutting knlfe'la. The head and knife overhang-a werk support 15 which is mounted on a ack or column 1G movable towardand from the knife 141:. and to and from the path of the same.

The .head 12 is provided with an adjusting rod`17 and screw 18.y ofwhich the former is pivotally connected to one end of a link 19, seeFigs. 2 and 12. The other end of theI link is connected with a Crank 21on one end of a. driving shaft 20. The shaft carries a loose pulley 22and clutch mechanism by which it is made to rotate the shaft.C]utchcontrolling mechanism is provided for causing the clutch to imparta single revolution at a time to the shaft as hereinafter explained. Bvthis mians, the knife 11 is given a movement toward and from the work,whereupon it stops until subsequently set in motion again by theclutch-controlling mechanism.

The work-supporting column 16 is made in two sections and is providedwith adjusting mechanism by reason of which it is ex-A tensible.. Thelower section is provided with a head 23 embracing a nut 21 and carryinga pin 25. The upper section is provided with a screw-threaded end whichextends through the nut 24 and into the head. It

braces the pin 25 and so prevents the upper section from turning in thehead 2 3. The upper section may be raised or lowered by means of thenut, for the purpose of obtaining an adjustment of the upper section.The

Iis also provided with a collar 26 which emlower section of the column16 is mounted so as to slide endwise in an oscillatory guide or ulerummember 27, which i's attached to the standard l1 as shown in "igs. 2 and5.v A. cylindrical boss 28 formed on the member 27 'sets into a liXedplate 29 and is fastened ymember 35 of an extensible link. The othermembers of the link are a member 36 which is adapted to-teleseope withthe member 35,

Y -ter figure,

and two helical springs 37 which tend to draw together the members and36. The

member 36 is pivotally connected to the.'

free end of an arm 38 aiiXed `upon a rockshaft 39 mounted in bearingsorifthe base l0. A treadle 40 is aliiXed to the hook-shaft, by means ofwhich the toggle levers 32 may be actuated to vraise or lower the column16. 'As shown by Fig. l, the column is depressed, but as shown by Fig.3, it is elevated by the tzli-ggle whose pivots stand in alinement parael to the path of the column. in the latthe extensible linlr isextended, for a purpose hereinafter. explained, and the rings 37 areexerting their tension upon which, however, cans t e. jolpt of thetoggle not pa s'beyond the alined positionbecause I of the'bngagement ofopposing shoulders 41 as hereinbefore described,

41 with which they are provided. By means of the toggles and theextensible link, the Work vis moved to operative position byl yieldingpressure which increases and iinally ceases when the toggles and thecolumn' become rigidly related as the work reaches operative' osition.

In or er to insure a correct position of 'the Work prior to operation ofthe knife, the machine is provided'with a stop or gage t2 which isadapted to be engaged by the shank of a shoe when the latter is moved toopera.- vtive position, as shown by Fig. 3. The gage is an arm aiiixedtothe upper end of an upright rock-shaft 43 mounted in tired bearings onthe standard il, and may be moved transversely in relation to theparallel movements of the knife-and work-support'. The lower end of therock-shaft 43 isA provided with a `forked lever 44 which embraces anactuating member 45 aiiixed to the lower section of the column 16. Byreason of mounting the column in the oscillatory member 27, they areadapted to be rocked upon the boss 28 to either of the positions shownby Figs. l and 4, and,

at envianos...

when so rocked,

the' actuating member 45 rocks the Shaft 43 thus imparting lateralmovement to the stop ft2. The reason for moving the stop is explained inthe follown ing description of the operation of the jack.

Referring now to F ig. Li, it appears that the jack is inclined to aposition for receiving a shoe, and that the stop or gage e2 is in aninoperative position. See also dotted lines of Fig. 13. After a shoe isplaced over the work support as shown, the j acl; may be manually rockedto an upright position as shown by Fig. l, the jack meanwhile occupyingits lower position. As it approaches an upright position, it impartsmovement to the stop l2 which swings outwardly over the shoe in the pathci, but following, the heel. lWhen in the position shown in Fig. l, thestop extends over the shank of the shoe, not touching it but below theplane of the heel tread. From this position the shoe is raised tooperative position by depressing the trundle 40 so as to draw the togglelevers into alinement, as shown by Fig. 3. IThis elevates the column 16so that the shank of the shoe is pressed against the stop, and the heelis moved into engagement With another gage indicated at 46. See Figs.lat and l5. The gage s6 'has a twofold purpose, of which one is to serveas means for gaging the position of the shoe as it approaches the :stop42. The other purpose is to bind the shoe firmly upon the work supportto prevent'it from twisting. For this purpose it is made to yield andr`is furthermore made adjustable as to inclination, andso also is the worksupport l5.

The support lo is pivotally mounted on a head #il which is ailixed tothe upper end ot the column 16. An adjusting screw threaded into thehead serves means for adjusting the inclination oi' the support andsupporting it in any position.

The gage t6 is adapted to he adjusted to contorni to the inclination ofthe work support and ior this purpose is pivoted at 49 to a carrier 50.The carrier has a plunger 5l which extends through a bracket attached tothe standard ll, and an adjusring screw 53 which determines theinclination of the gage. The latter is held by a spring 5d against itsscrew 53, and the carrier as a ywhole is depressed by a helical .spring55 con- Stop nuts 5C on limit its downof permitting further downwardmovement L of the treadle 40. The purpose 'of this additionalmoveinentisto actuate the clutclr controlling mechanism which sets the knife la inmotion. rllhe latter may be brieiiy scribed, although it is notessential part 1.

v i normally separated by a spring 62 interposed between their "tubs,which forces the pulley member against a screw-threaded collar 63, andthe cone member- 6l against a transversely movable vi-edge member 64 fthe controller' mechanism.

65l is a complemental wedge member pinned or otherwise affixed upon theshaft,

` which carries the wedge member 64 and nular controller 66 which has acylindrical hub on which an anis adapted to move parallel to the axis ofthe shaft. Yj l'spring 67 interposed between opposed faces of the twowedge members normall-y holds the member 64 in operative position forcompressing the clutch members 6() and 6l. The controller 66 isstraddled by a yoke or shipper 68, pivoted at 69 to a stationarysupport, and is normally held by a spring 7 6 in operative position,that is, the position which renders inoperative the normally operativewedge members. rThese relations can be seen in 5 in which the controller66 is disengaged' from the member 64. The latter is therefore initsnormally operaf tive position, and consequently the clutch p lug 74, andthe latter when in their normal members -are rendered operativealthough, position, they are inop` erative. The shipper' 68 is connectedto a rock arm 7l by a toggle or spreader 72 which has a universal balljoint at each end. A spring 73 connected to the arm 7l tends to y movethe latter to the left, as shown by Fig.

8, in harmony with the tendency of the spring 70.

The arm 7l has apin or lug 74 which is adapted to support the free endof a swinging hooked latch 75 pivotally connected to an arm 76 formedupon the treadle 40. "The latch 75 has a square face 77 and a curvedface 78, the former adapted to engage the adapted to engage a roller 79mounted on a fixed support. The latter instrumentalities lconstitute atripping mechanism by which the treadle 40 .is made to set the clutchmechanism as follows: Fig. 6 shows the clutch-controlling mechanism inthe position corresponding to the lower position of the jack, as shownby Fig. l. lVhen the treadle 40 is depressed, it elevates the work tooperative-position as hereinbefore described, and incidentally it movesthe arm 76 and latch 75 from the position shown Vby Fig, 8 to the right.That portion ofthe movement of the treadle which alines the end of abrake band 85 which `time the treadle is depressed.

toggles 32 causes the square face 77 to approach the lug 74, and furthermovement of the treadle, as permitted by the aforesaid extensible link,causes the face 77 to engage and .move the lug 74 thereby rocking thearm 7l. By this means the shipper is actuated so as to disengage thecontroller 66 from the member 64 and permit engagement of the clutchmembers. Driving connection is thereby established between the pulley 22and the shaft 20, but meanwhile-the curved face 7 Spf the latch engagesthe roller 79 and is thereby raised so that the square face 74 isdisengaged from the lug 74. The spring 7 3 then returns the arm 71 andthe spring 70 returns the shipper 66 to their normal positions. I y

The controller (see Fig. 9) has'a flat face 80 which, as the wedgemembers rotate, moves in under a block 81 aflixed to the member 64. Theblock therefore rides upon the said face and is moved transverselyagainst the tension of thc spring 67, thereby rendering the wedge memberand the clutch members inoperative. The block 8l' also has an eccentricouterface which engages a roll 82 in the free end of a brake lever 83.The lever is fulcrumed at S4 to one surrounds a flange 86 on the clutchmember 6l. The other end of the band is connected by a pivoted link 87with the lever 83, and by this meansthe ends of the band are drawn`together when the arm is actuated by the block 8l. Diametrieallyopposite the link 87 the ban'd is supported and prevented from revolvingby a bracket 88 affixed to the upright standard..

The effect of the described clutch and controlling mechanism is toimpart a single revolution to the shaft 2O and then autel matically stopit by means of the brake each A revolution of the shaft effects amovement of the knife toward and from .the work. ln practice the knifeis so adjusted as to ad ance to the transverse plane of thework-engaging face of the stop 42, and so it follows that., if the shankof a shoe is in contact with the stop, the knife i's capable ofadvancinoto but not into the shank. A convenient Jeans for adjusting the rangeAof movement of the knife is shown in detail in Figs. 2 and 13, andcomprises a worm 90 intermeshing with teeth on the periphery of the nut.1S, a shaft 91.v carrying the worm, and a hand wheel 92 on the shaft.

The object of moving the stop 42, when the work support is movedlaterally, is to decrease the extent of movement of the column towardand from the knife necessary for permitting lateral movement of the worksupport to and from work-receiving position. For example, suppose thestop were immovable and that the shoe is in operative position as inFig. 3. ln order to move the work support to the position shown by Fig.4e, it would be necessary to depress it slightly more than the depth ofthe heel in order to make it possible for the heel to pass laterallyunder the stop. But, accordingl tov the present invention, it is notnecessaryv to depress the tread of the heel belovv the plane of the stopin order to enable the Work support to move laterally. In the presentinstance, it is necessary to depress the work support only so far as todiscngage the shank of the shoe from the stop, when the v-fork supportmay be moved vlaterally because the stop likewise moves laterally in thesame transverse plane as the heel. In the reverse operation, the heeland the stop apliroach operative position in the same transverse plane.The advantage of thus reducing)- the necessary range of; movement of thework toward and from the l knife is to minimize the degree of movementnecessary in the' actuating means, namely the toggle levers, andconsequentlyY the manual power required of a minimum degree. 'lhere isalso an advantage gained by mounting and actuating the work-supportingcolumn in the aforesaid manner. rlhe column, by reason of its pivotalbearing member, when moved laterally moves in anarc ivhoseradius is solong that inclination of the column is so slight as to beunobjectionable in applying and removing the Work. The increase in theradius is made possibleby locating the axis below the point. at whichthe elevating means is connected to the column. I

Having't-hus explained the nature of my said invention. and described aivay of constructing and using the same, although n'ithout attempting tosel forth all of the forms in which it may be made or all of the modesof its use, ivhal" l claim l, :L heel breastin` machine, con'iprising acutting knife, a work support movable toA Ward and from the knife, and astop movable with relation to the knife for limiting the movement of theivork toward the knife, said stop being` fixed as to movement in linewith the Work and knife..

2.. A heel breasting machine, comprising a cutting' knife, a worksupport movable toivard and from the knife, an d a stop movable to andfrom the. path of the wor Vfor arresting the movement of the Worktowardfthe knife and for enga inf fy the Work through-V out theoperation of the knife.

8. A heel breasting machine comprising a breasting knife, means forimparting cutting movement thereto, a Work support movable toivard theknife in the direction opposed to that of the knifes cutting movement,and a gage for arresting the Work to determine. the depth of the cut,said lgage being movable transversely the aforesaid i vvard and from themovements to and from work-engaging' position. I

4i. A heel breasting machine, comprising a cutting knife, a vvorksupport movable-to- 'ivard and from the knife, and a movable stop forarresting movement of the Work toward the knife, said stop an@ movabletransversely of the vvork support, out otherwise fitted.

5. A heel breasting,` machine, comprising a cutting` knife, a worksupport movable to and from alinement With the knife, and movabletovvard and from the knife in alinement. therewith, and a movable st pfor arresting movement of the Work toward the knife, said stop beingmovable with relation to the knife and vvork support to and from thepath of the Work transversely of said pat-h.

G. A heel breasting machine, comprising a cutting; knife, a vvorksupport movable toknife and movable transversely to and from alinementwith the knife, a movable work-engaging stop adapted to arrestmovement'of the ivork toward the knife, and means for movingthe stoptransversely of said alinement to and from Work-engaging position. Y

7. heel breasting machine, comprising a cutting` knife, a vi A-. supportmovable tovvard and from the knife and movable transversely to and fromalinement vvith the knifea movable work-engaging stop for arrestingmovement of the work toward the knife, 'and means connecting the Worksupport and the stop for movingA the stop to and from Work-engagingposition when the support is moved to and from alinement with the knife,

8. A heel breastingmachine, comprising a cutting knife, a vvork supportmovable toward and from the knife and movable transversely to and fromalinement with the knife` a transversely movable Work-engagingstopforarresting movement of the ivork toward the knife, and means adapted tobe actuated by transverse movement of the support for moving the stop toor from work-engaging` position.

9. A heel breasting' machine, comprisingr a. movable knife,'continuously moving,'normally inoperative, driving means for movingsaid knife, a Work support, an oscillatory column for said supportadapted to be reciprocated transversely of its axis of oscillation,rigidly supported toggle levers for reciprocating the column,controlling' means forrendering said driving means operative, andmanually operative means for alining said toggle levers and actuatingsaid controlling means in the order given.

10. A heel breasting machine, comprising a knife, ay Work support, saidknife and Work support being movable in alinenient tovmrtL and 7fromeach other, means for movbring the, Work into ainenent with the mum 01'.the. knife sie bring; Hm Work in pns- (cui 'o be and a gage fnzed in thedme- 01'; the kn' te bu movable Il fidarsi fait @am dil-@dion ofmovement mi; mud MQW tu zules''m Work u1 its movement toward the invia.

v, said dvllrgg A. hee bmastng nmchine Comprisig mamny Gp .twe meansvominventory lm'e, .uni'e-operatlng mech- 111g sind wik-su moans, andiban j :ja Work mqpor, movable trausverscy *"7 51113, wolkig fil' c,i12/v@ majon am?, fixen the work into a'lpemen With the )"m'e 1&1@dilemmi 'mi max/able iin the direction of mover "A, L j bf. ng iii@W017i. in posi "1' wlw/abi@ transversely of new, of Said .knife to i @ntoward th@ Qpcm Qmmecnions betwefan Y L and mid .gage in consequence yom is; di@ 05h91: nl essmony w have affixed my signature? in presencetwo Wmegsev.

